Infiniti FX35 / FX45. Manual - part 233

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)

BL-199

< SERVICE INFORMATION >

C

D

E

F

G

H

J

K

L

M

A

B

BL

N

O

P

NG

>> Reinstall NATS antenna amp. correctly.

3.

CHECK KEY ID CHIP

Start engine with another registered ignition key or mechanical key.

Does the engine start?

YES

>>

Ignition key or mechanical key ID chip is malfunctioning.

• Replace the ignition key or mechanical key.
• Perform initialization with CONSULT-III.

For initialization, refer to “CONSULT-III Operation Manual NATS–IVIS/NVIS”.

NO

>> GO TO 4.

4.

CHECK POWER SUPPLY FOR NATS ANTENNA AMP.

Check voltage between NATS antenna amp. connector M25 terminal 1 (L/R) and ground with CONSULT-III or
tester.

OK or NG

OK

>> GO TO 5.

NG

>> Check harness for open or short between NATS

antenna amp. and fuse.

5.

CHECK NATS ANTENNA AMP. SIGNAL LINE- 1

Check voltage between NATS antenna amp. connector M25 terminal 2 (G/B) and ground with analogue tester.

OK or NG

OK

>> GO TO 6.

NG

>> • Check harness for open or short between NATS

antenna amp. and BCM.
NOTE:
If harness is OK, replace BCM, perform initialization
with CONSULT-III. For initialization, refer to “CONSULT-III Operation Manual NATS–IVIS/NVIS”.

6.

CHECK NATS ANTENNA AMP. SIGNAL LINE- 2

Check voltage between NATS antenna amp. connector M25 terminal 4 (BR) and ground with analogue tester.

OK or NG

OK

>> GO TO 7.

NG

>> • Check harness for open or short between NATS

antenna amp. and BCM.
NOTE:
If harness is OK, replace BCM, perform initialization
with CONSULT-III. For initialization, refer to “CONSULT-III Operation Manual NATS–IVIS/NVIS”.

1 (L/R) – Ground

: Battery voltage

PIIA6145E

Before inserting mechanical key in ignition knob

Voltage: 0V

Just after inserting mechanical key in ignition knob

: Pointer of tester should move.

PIIA6146E

Before inserting mechanical key in ignition knob

Voltage: 0V

Just after inserting mechanical key in ignition knob

: Pointer of tester should move.

PIIA6147E

BL-200

< SERVICE INFORMATION >

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)

7.

CHECK NATS ANTENNA AMP. GROUND LINE CIRCUIT

1.

Turn ignition switch OFF.

2.

Check continuity between NATS antenna amp. connector M25 terminal 3 (B) and ground.

OK or NG

OK

>> NATS antenna amp. is malfunctioning.

NG

>> • Check harness for open or short between NATS

antenna amp. and ground.
NOTE:
If harness is OK, replace BCM, perform initialization
with CONSULT-III. For initialization, refer to “CON-
SULT-III Operation Manual NATS–IVIS/NVIS”.

Diagnosis Procedure 6

INFOID:0000000001327939

“SECURITY INDICATOR LAMP DOES NOT LIGHT UP”

1.

CHECK FUSE

• Check 10A fuse [No.19, located in the fuse block (J/B)]

NOTE:
Refer to 

BL-185, "Component Parts and Harness Connector Location"

.

OK or NG

OK

>> GO TO 2.

NG

>> Replace fuse.

2.

CHECK SECURITY INDICATOR LAMP

1.

Install 10A fuse [No.19, located in the fuse block (J/B)]

2.

Start engine and turn ignition switch OFF.

3.

Check the security indicator lamp lights up.

OK or NG

OK

>> Inspection END.

NG

>> GO TO 3.

3.

CHECK SECURITY INDICATOR LAMP POWER SUPPLY CIRCUIT

1.

Disconnect security indicator lamp connector.

2.

Check voltage between security indicator lamp connector M38
terminal 1 (R/W) and ground.

OK or NG

OK

>> GO TO 4.

NG

>> Check harness for open or short between fuse and

security indicator lamp.

4.

CHECK BCM FUNCTION

1.

Connect security indicator lamp connector.

2.

Disconnect BCM connector M3.

3 (B) – Ground

: Continuity should exist.

PIIA6148E

 Security indicator lamp should light up.

1 (R/W) – Ground

: Battery voltage

PIIA6149E

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)

BL-201

< SERVICE INFORMATION >

C

D

E

F

G

H

J

K

L

M

A

B

BL

N

O

P

3.

Check voltage between BCM connector M3 terminal 23 (G/OR)
and ground.

OK or NG

OK

>>

BCM is malfunctioning.

• Replace BCM.
• Perform initialization with CONSULT-III.
• For initialization, refer to “CONSULT-III Operation

Manual NATS-IVIS/NVIS”.

NG

>>

Check the following.

• Harness for open or short between security indicator lamp and BCM.
• Indicator lamp condition

Removal and Installation NATS Antenna Amp

INFOID:0000000001327940

REMOVAL

CAUTION:

Before servicing SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 min-
utes.

1.

Remove the steering column cover. Refer to 

IP-11, "Removal and Installation"

.

2.

Disconnect the NATS antenna amp. connect, remove the screw
and NATS antenna amp.

INSTALLATION

Install in the reverse order of removal.

23 (G/OR) – Ground

: Battery voltage

PIIA6150E

PIIA6064E

BL-202

< SERVICE INFORMATION >

INTEGRATED HOMELINK TRANSMITTER

INTEGRATED HOMELINK TRANSMITTER

Wiring Diagram - TRNSCV -

INFOID:0000000001327941

Trouble Diagnosis

INFOID:0000000001327942

DIAGNOSTIC PROCEDURE

SYMPTOM: Transmitter Does Not Activate Receiver.

TIWM1680E